breaking up for a second time... !

[Guest]

so my boyfriend and i broke up four months ago after being together for a year. we still spoke all of the time, and saw each other a lot, and although we weren't officially together, not much had changed. i really missed him but the reasons i broke up with him were still pretty pertinent. during our relationships he made some bad decisions because of stress in his life, (he impulsively quit his job, told everyone he was either going to the army or moving away and actually packed his apt but in the long run, decided to stay, and other impulsive things). i really, really missed him and he seemed to be getting his life back on track. we had a long convo about how we still loved, missed each other and i decided to take him back and try it again. my family thinks i made the wrong choice and i can tell it's already causing tension between my family because they don't think he's changed. i think i need to call it off for good because as much as i love him, i'm nervous his impulsiveness will hurt me in the long run. we have only been back together for 2 weeks but i know i need to end it before i get re-attached. has anyone ever been in a situaion like this. what should i do? i still love him and think it can work out, but i dont think it will be forever, and i dont want to cause tension in my family. i dont want to tell him it's because it's causing tension in my family, what do i say? he knows i still love him and as of just yesterday wanted to try it again. ive just done lots of thinking, and i dont think it's worth it. please lend some advice!!!